Positive periodic solutions of nonlinear first-order functional difference equations with a parameter
We obtain the existence and multiplicity of positive $T$-periodic solutions for the difference equations $$ Delta x(n)=a(n,x(n))-lambda b(n)f(x(n-au(n))) $$ and $$ Delta x(n)+a(n,x(n))=lambda b(n)f(x(n-au(n))), $$ where $f(cdot)$ may be singular at $x=0$. Using a fixed point theorem in con...
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| Format: | Article |
| Language: | English |
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Texas State University
2011-07-01
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| Series: | Electronic Journal of Differential Equations |
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| Online Access: | http://ejde.math.txstate.edu/Volumes/2011/96/abstr.html |